Which other professions have this attitude? I've either worked or supported a pretty wide variety of other jobs, and I can't off the top of my head think of a single one that does.
Even if some examples are brought up (and I'm genuinely interested in what they'd be), it's far from the usual approach in most hiring situations.
I generally prefer an existing portfolio of code (e.g. github repos) to see the kind of code someone produces, but if you aren't able to show some fairly extensive examples of your work, homework is usually a bunch better assessment of your skills than what can be accomplished in a ~45 min interview.
When I wrote my comment, I was thinking of the medical profession, dentistry, auto & other mechanics, appliance and other device repair, construction ("there's a pile of lumber in the back, you have an hour to build a shed and then we'll consider hiring you"), plumbing, civil engineering ...